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Mirrors > Home > MPE Home > Th. List > bitr2i | Structured version Visualization version Unicode version |
Description: An inference from transitive law for logical equivalence. (Contributed by NM, 12-Mar-1993.) |
Ref | Expression |
---|---|
bitr2i.1 | |
bitr2i.2 |
Ref | Expression |
---|---|
bitr2i |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bitr2i.1 | . . 3 | |
2 | bitr2i.2 | . . 3 | |
3 | 1, 2 | bitri 264 | . 2 |
4 | 3 | bicomi 214 | 1 |
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